Hey guys,
I think that Aryan's first wife had an affair with some other guy before her wedding with Aryan. After knowing that Aryan is an impotet, she would have felt loneliness in her life, due to which she would have started to meet her boyfriend again. She must have carried the relationship with her boyfriend due to which she got pregnant. This story resembles the story of the movie murder, but that's what came to my mind.